can't add to pointers.

[jcisco2]

I'm wondering how to occumiplish this task in C++. what i would like to do is pass two values to another exe. but Every time I go to compile this application I get an error that tells me that I can't add to pointers together.
The function with the problem is TS_function on the ShellExecute statement line.

What I would like to have happen is my client.exe application launch taking in a base value 1 or a -1, and a pair based value of 1 through 15.

thank you for any help.

cheers.

#include "fxAuto.h"

BOOL APIENTRY _DllMain( HANDLE hModule,
DWORD ul_reason_for_call,
LPVOID lpReserved
)
{
return TRUE;
}

int _stdcall TS_function(int _position, int pair )
{

int MyAvg = _position + 1;
HINSTANCE HINSsd =
ShellExecute(NULL,"open","C:\\client.exe" + " " +
_position + " " + pair , NULL, NULL, SW_SHOWNORMAL);
//execute it.


return( MyAvg ) ;
}

 

[cpjust]

I just answered a question that looks like the same type of problem. You can't use the + operator on char* strings:

http://www.tek-tips.com/viewthread.cfm?qid=1184294&page=1

 

[jcisco2]

I'm sorry to repost on this. i'm at a loss i really need some help on this. I have a vb.net application that is able to be launched from a command line window. this application takes in 2 input values from the calling program. i have tested it from the command line window and the application works so i know that this is not the problem.
an example on how to launch this application would be
c> client.exe -1 12 (application must take in two values)

on the c++ side I have tried these solutions thus far and none have worked. :

stringstream strNew;
strNew << "C:\\client.exe " << _position << " " << pair;
HINSTANCE HINSsd = ShellExecute(NULL,"open", strNew.str().c_str(), NULL, NULL, SW_SHOWNORMAL); //execute it.

which nothing happens.

I have tried this.
char* result3 = "C:\\client.exe 1 12";
HINSTANCE HINSsd = ShellExecute(NULL,"open", result3, NULL, NULL, SW_SHOWNORMAL); //execute it

nothing happens
(...but if i do this )
char* result3 = "C:\\client.exe";
HINSTANCE HINSsd = ShellExecute(NULL,"open", result3, NULL, NULL, SW_SHOWNORMAL); //execute it

the program launchs with errors cause the input values are not there.

I have tried this.
stringstream strNew;
stringstream strNew2;
string itoString;
string itoString2;
string result;

strNew << _position;
itoString = strNew.str();

strNew2 << pair;
itoString2 = strNew2.str();

result = "C:\\client.exe " + itoString + " " + itoString2;
HINSTANCE HINSsd = ShellExecute(NULL,"open", result.c_str, NULL, NULL, SW_SHOWNORMAL); //execute it.

nothing happens.

And i have tried this.
string result2;
result2 = "C:\\client.exe ";

if (_position == -1 )
{
result2 = result2 + "-1 ";
}

if (_position == 1 )
{
result2 = result2 + "1 ";
}

if (pair = 1)
{
result2 = result2 + "1";
}
if (pair = 2)
{
result2 = result2 + "2";
}
if (pair = 3)
{
result2 = result2 + "3";
}
if (pair = 4)
{
result2 = result2 + "4";
}
if (pair = 5)
{
result2 = result2 + "5";
}
if (pair = 6)
{
result2 = result2 + "6";
}
if (pair = 7)
{
result2 = result2 + "7";
}
if (pair = 8)
{
result2 = result2 + "8";
}
if (pair = 9)
{
result2 = result2 + "9";
}
if (pair = 10)
{
result2 = result2 + "10";
}
if (pair = 11)
{
result2 = result2 + "11";
}
if (pair = 12)
{
result2 = result2 + "12";
}
if (pair = 13)
{
result2 = result2 + "13";
}
if (pair = 14)
{
result2 = result2 + "14";
}

HINSTANCE HINSsd = ShellExecute(NULL,"open", result2.c_str, NULL, NULL, SW_SHOWNORMAL); //execute it.

nothing happens.

I really need some help on this. The problem is coming in on the args part of the shellexecute statement. if i try any of the above without the args it works.. of course the .net program crashs because it wants the two args but it launchs. but once i add the 2 args nothing happens.

any suggestions? or other ways to go about this problem.

cheers.

thnx you for any help. i know there has to be a way for C++ to pass in args to another application.

 

[jcisco2]

ok ok ok. i'm dumb. i should of read on the shell first. but for some reason i had it in my mind that the args had to be passed with the app string. boy was i wrong. solution:

char* result3 = "C:\\client.exe";
stringstream strNew;
strNew << _position << " " << pair;

HINSTANCE HINSsd = ShellExecute(NULL,"open", result3, strNew.str().c_str(), NULL , SW_SHOWNORMAL); //execute it.
thank you for the input.

 

[Salem]

> if (pair = 1)
You started off using ==, and you slipped into using =
Make all your comparisons ==

> HINSTANCE HINSsd = ShellExecute(NULL,"open", result2.c_str
You need to invoke the method, not point at the method

HINSTANCE HINSsd = ShellExecute(NULL,"open", result2.c_str()

PS.
Don't forget the [code][/code] tags when posting code

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